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duramax 6.6 lml
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  1. 911 Problems Forum
    21013 Stock 6.6 Running and driving fine yesterday, accelerated hard to get onto the interstate and suddenly heard an unholy knocking sound and lost power. At the time, I was pulling a 24ft gooseneck trailer empty and had tow mode and the exhaust brake on. No bells or whistles went off, no dash...
  2. General Discussion
    I just bought a 13 lml. 155,000 miles. Test drove it all sounded great. After about 300 miles I started hearing a knock, hooked computer up and cylinder 6 balance rate was at -4.2. Changed injector same problem. The noise only comes when the truck it warm or up to temp. I can unplug injector...
  3. 11-16 LML Performance Parts Discussion
    I am new to the diesel world so I figured Id ask anyone here with knowledge. I have a 2016 LML 6.6 Duramax 75,800 miles, the only modifications on the truck is a S&B cold air intake. I'm wanting to know if I need to delete the DPF, EGR, and the DEF in order to tune the truck. I know i can throw...
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